AboutCAJUNSC/RAMBLER390 Expertise 1998 and NEWER questions ONLY!! I WILL REJECT QUESTIONS FROM 1998 BACK. Electrical diagnosis. Brake Diagnosis. Driveability, Service Engine Soon Lights. Some Engine mechanical. Tires and wheels. ABS. HVAC. Air Bag (SIR). Interior, seats, etc... 6.6L Duramax Diesel diagnosis. 6.5L diesel diagnosis. I WILL not answer Alignment questions OR carburetor questions. No heavy internal transmission
I need YEAR, MAKE and MODEL of vehicle, and ENGINE SIZE and TRANSMISSION type, IF applicable to the question.
I work at a Large, Busy GM Dealership
Last thing, my answers are JUST SUGGESTIONS and ADVICE and you should ALWAYS CHECK with your mechanic for proper diagnosis and repair.
Experience 18 Years GM Dealership experience as an "A" line tech. ASE MasterTechnician. 100% GM paper certified and working towards MTC Certification.
Education/Credentials High School graduate. No College or higher learning.
Question I have a 2002 Tahoe with a 5.3L FlexFuel engine (VIN "Z") with a failing intake gasket. Is the intake removal and installation procedure the same as in your response to 2003 gmc yukon on 12/23/2007? Are the torque specs the same? Can you post the proper intake bolt tightening sequence?
Thanks
Answer Hi
Removal process same.
here is the torque specs.
Install new intake manifold gaskets (1) to the intake manifold.
Install the intake manifold.
Apply a 5 mm (0.20 in) band of threadlock GM U.S. P/N 12345382, Canada P/N 10953489, or equivalent to the threads of the intake manifold bolts.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Install the intake manifold bolts. Tighten
Tighten the intake manifold bolts a first pass in sequence to 5 N·m (44 lb in).
Tighten the intake manifold bolts a final pass in sequence to 10 N·m (89 lb in).
********Since I cannot post pics, here is the bolt location**********
Passenger side (PS) THEN BOLT # FROM FRONT
Drivers side (DS) THEN BOLT # FROM FRONT
